//
//  WelComeViewController.swift
//  xinlangweibo
//
//  Created by 陈志强 on 15/11/14.
//  Copyright © 2015年 陈志强. All rights reserved.
//

import UIKit
import SnapKit
import SDWebImage 
class WelComeViewController: UIViewController {

    override func loadView() {
        view = backImage
    }
    override func viewDidLoad() {
        super.viewDidLoad()
        setupUI()
    }
    
    //tianjiadonghua
    override func viewDidAppear(animated: Bool) {
        super.viewDidAppear(animated)
        startAnimation()
    }
    private func startAnimation(){
        self.iconImage.snp_updateConstraints(closure: { (make) -> Void in
            make.bottom.equalTo(self.view.snp_bottom).offset(-self.view.bounds.height + 180)
        })
        
        UIView.animateWithDuration(1.5, delay: 0, usingSpringWithDamping: 0.9, initialSpringVelocity: 9.8, options: [], animations: { () -> Void in
           self.view.layoutIfNeeded()
            }) { (_) -> Void in
                UIView.animateWithDuration(0.6, animations: { () -> Void in
                    self.welcomeLabel.alpha = 1
                    }, completion: { (_) -> Void in
                        print("ok")
                        //发出通知
        //NSNotificationCenter.defaultCenter().postNotificationName(AppSwitchRootViewControler, object:nil)
        NSNotificationCenter.defaultCenter().postNotificationName(AppSwitchRootViewControler, object: nil)
                })
        }
    }
    //添加子视图
    private func setupUI(){
        view.addSubview(iconImage)
        view.addSubview(welcomeLabel)
        
        iconImage.snp_makeConstraints { (make) -> Void in
            make.centerX.equalTo(view.snp_centerX)
            make.bottom.equalTo(view.snp_bottom).offset(-180)
            make.width.equalTo(90)
            make.height.equalTo(90)
        }
        welcomeLabel.snp_makeConstraints { (make) -> Void in
            make.top.equalTo(iconImage.snp_bottom).offset(20)
            make.centerX.equalTo(view.snp_centerX)
            iconImage.sd_setImageWithURL(UserAccountViewModel().headURL, placeholderImage: UIImage(named: "avatar_default_big"))
            iconImage.layer.cornerRadius = 45
            iconImage.layer.masksToBounds = true
        }
    }

   //懒加载
    private lazy var backImage: UIImageView = UIImageView(image: UIImage(named: "ad_background"))

    private lazy var iconImage: UIImageView = UIImageView()
    
    private lazy var welcomeLabel: UILabel = {
        var l = UILabel()
        l.textColor = UIColor.lightGrayColor()
        l.font = UIFont.systemFontOfSize(14)
        l.textAlignment = .Center
        l.text = (UserAccountViewModel().userName ?? "") + "欢迎回来"
        l.alpha = 0
        l.sizeToFit()
        return l
    }()
}
